https://vods.198x.eu/videos/watch/dca0434c-1361-46bb-ac99-acd986952e1e



@johncarlosbaez @gregeganSF
The latest NASA missions use the same coding scheme as 5G physical layer: LDPC (low-density parity-check) code.
Among capacity-approaching codes
LDPC approaches the Shannon limit more closely than any other class of codes.
LDPC was invented by Robert Gallager in 1961 and mostly forgotten (“a bit of 21st-century coding that happened to fall in the 20th century”). LDPC uses sparse Tanner graph.